Coiling machine



July 31, 1928.. 1,678,749

T. W. SMITH COILING MACHINE Filed April 15, 1927 I5 Sheets-Sheet 1 I10 eye 507'.-

July 31, 1928.

T. W. SMITH comma MACHINE Filed April 13, 1927 3 Sheets-Sheet inventar: Eon 14s 14 .fiM/TH,

Witnesses Patented July 31, 1923.

UNITE STATES 1,378,749 PATENT OFFICE.

THOMAS W. SMITH, OFTRVINGTON, NEW JERSEY.

oornrne- MACHINE.

Application filed April 13, 1927. Serial No. 183,556.

This invention relates to'coiling machines and more particularly to coiling machines adapted to coil either-round, square, or flat metal pieces or bars, or bars approximating these shapes such as hexagonal, oval and similar shapes.

One of the objects of this invention is to provide a machine of the class described, which coils and holds the work-pieces or bars until said work-pieces are secured by tying or otherwise.

Another object is to provide a machine.

that may be readily adjusted to handle various sizes of work-pieces.

A further object is to provide a coiling machine having the novel design, construction, and arrangement of parts hereinafter described and illustrated in the accompanying drawings.

In the drawings- Figure 1 is a plan view of a machine con structed in accordance with this invention.

Figure 2 is a side elevation thereof.

Figure 3 is a front elevation thereof.

Figure 4 is a sectional elevation on the line IV IV of Figure 1.

Referring more particularly to the drawings, the letter A designates the base of the coiling machine as a whole, which comprises a bedplate 2 and a base-plate 3 supported above the bed-plate 2 by brackets 4.

The plate 3 is apertured as at 5 to form a bearing for a spindle shaft 6 which has its lower end journaled in a bearing 7.

A spindle drum 8 is keyed or otherwise secured to the upper end of the shaft 6 and is adapted to have the material to he coiled wrapped therearound.

The drum 8 is composed of a base 9, a hub portion 10 and an upstanding peripheral rim 12 which is formed integral with the base 9 and connected with the'hub 10 by webs 13. The rim 12 is provided with a slot or recess 14 to receive the end of the work-piece to be coiled. A grip bar 15 is rigidly secured along one side of the slot 14 and a cam 16 is journaled in a recess along the opposite side of the slot and is adapted to be moved into the slot 14 to force the work-piece against the grip bar 15 and lock said work-piece in the slot 14. The upper end of the cam 16 is extended and a handle 17 is secured thereon for rotating the cam to move it into and out of the slot 14.

The spindle shaft 6 is provided with a worm-wheel 18 which is in mesh with a worm 19 on a worm-shaft 20 journaled in bearings 21. One end of the shaft 20 is extended and carries a gear 22 which is in mesh with a pinion 23 on one end ofa shaft 24.journaled in bearings 25. The other end of the shaft 24 is provided with a gear 26 which is meshed with a driving pinion 27 on the armature shaft of a driving motor 28.

The driving gearing, as will be readily understood is of a standard reducing gearing type so that the spindle drum 8 is rotated slowly but with maximum power.

In order to guide the work-pieces to be coiled as they are fed to the spindle drum 8 a pair of right and left-hand rollers 30 and 31 respectively are provided to engage the opposite sides of the worlnpiece.

The roller 31 is journaled on a roller-pin 32 mounted in a housing 33, which is slidably mounted in guideways 34 on the baseplate 3, at a point closely adjacent the spindle drum 8. An adjusting screw 35 is threaded in a bracket 36 secured to the base-plate 3 at a point to the'rear of the roller housing 33' and has its forward end connected to the roller housing by collar-plates 37, so that rotation of the screw 35 will cause the housing 33 and roller 31 to move transversely of the base-plate. I

The roller 30is journaled on a roller-pin 33mounted in a housing 39 which is slidably mounted in guideways 40 on the baseplatev 3 at a point materially forward or farther away from the spindle drum 8. An adjusting screw 41 is threaded in a bracket 42 secured to the base-plate 3 at a point to the rear of the roller housing 39 and has its forward end connected to the roller housing by collar-plates 43 so that rotation of the screw 41 will cause the housing 39 and roller 30 to move transverselyof the base-plate toward or away from the roller 31 so as to ccoinmodate various thicknesses of workpieces.

A pair of spring pressed holding rollers 43 and 44 are positioned spaced intervals around the spindledrum 8 to hold the coiled work-piece against the drum until it is tied or otherwise secured.

The roller 43 is journaled on a pin 45 secured in a housing 43 which is slidably mounted in guideways 47 on the base-plate 3. A spring housing 48 is secured on an extension of the hase-plate 3 and a coil spring 49 is mounted in the housing" 48 and bears against the housing 46. A combined tie and tension rod is threaded into the housing 46 and extends rearwardly through the center of the spring 49 and housing 48 and is provided with a nut 51 which is adapted to be adjusted to move the housing 46 and roller 43 away from the spindle drum 8 and against the tension of the spring 49.

The roller 44 is journaled on a pin 52 secured in a housing .53 which is slidably mounted in guideways 54 on the base-plate 3. A spring housing is secured ,on an eX- tension of the base-plate 3 and a coil spring 56 is mounted in the housing 55 and bears against the housing 53. A. combined tie and tension rod 57 is threaded into the housing 53 and extends rearwardly through the center of the spring 56 and housing 55, and is provided with a nut 58 which is adapted to be adjusted to move the housing 53 and roller 44 away from the spindle drum 8 and against the tension of the spring 56.

The base 9 and rim 12 of the spindle drum are provided with alined slots to receive tie wires (not shown) which are adapted to be located in the slots prior to the coiling of a work-piece so that said piece may be readily tied or secured after it is coiled.

The base 9 of the drum is also provided with depressions or recesses 61 to permit the entering of a suitable tool under the coiled work-piece to force said piece from the drum after it is coiled if necessary.

In operation the end of the work-piece is fed between the rollers 30 and 31 into the slot 14 and the handle 17 is operated to move the cam 16 into the slot 14 and clamp the work-piece against the grip bar 15.

The motor 28 is then started to rotate the spindle drum 8 in a clockwise direction to coil the work-piece thereon. The spacing of the rollers 30 and 31'is such that the line of feed of the material or work-piece is maintained during the whole coiling operation and therefore, a uniform coil is provided.

WVhen the rear end of the material or work-piece has been coiled, that is passed beyond the roller 81, the machine is stopped and the roller 43 serves to hold the material in coiled position.

The rollers 30 and 31, and 43 and 44, may be adjusted to accommodate various sizes of material or work-pieces, and the spring mounting of the rollers 43 and 44 serves to provide a safety means to prevent breakage if material should be overlapped during coilmg.

Before entering the work-piece to be coiled, a plurality of the wires are positioned in the slots 60 so that after the work-piece is coiled it may be tied in position prior to removing it from the machine.

If the coiled work-piece should stick due to tight coiling on the spindle drum 8, any suitable tool or bar maybe entered in the recesses 61 in the base of the spindle to force the coiled material off the spindle.

.l/Vhile I have shown and described one specific embodiment of my invention I do not wish to be limited thereto since various changes and modifications may be made without departing from the scope of my invention as defined in the appended claims.

I claim 1. A universal coiling machine for coiling square, round, and flat metal pieces, comprising a base, a spindle rotatably mounted on said base, a plurality of spring pressed holding rollers. slidably mounted on said base and movable toward and away from said spindle, said rollers being spaced around said spindle, a pair of guide rollers slidably mounted on said base, said rollers being arranged right and left-hand so as to engage the opposite sides of the work-piece being coiled, individual screw means for adjusting each of said rollers to vary the distance between their faces, said spindle having a work-piece engaging slot, means movable into said slot for locking the end of the workpiece in said slot and power means for rotating said spindle.

2. A universal coiling machine for coiling square, round, and flat metal pieces, comprising a base, a spindle shaft journaled in said base, a spindle drum mounted on said shaft,- a plurality of spring pressed holding rollers slidably mounted on said base and movable toward and away from said spindle drum, a pair of guide rollers slidably mounted on said base, said rollers being arranged right and left-hand so as to engage the opposite sides of the work-piece being coiled and one of said rollers also being spaced a greater distance from said spindle drum than the other of said rollers so that said rollers will engage the work-piece at spaced points, individual screw means for adjusting each of said rollers to vary the distance between the faces of said rollers, said spindle drum being provided with a slot to receive the end of the workpiece to be coiled, means movable into said slot for locking the end of the workpiece in said slot, and power means for rotating said spindle shaft and spindle drum.

In testimony whereof, I have hereunto signed my name.

THOMAS W. SMITH. 

